A heater core assembly (10) comprising: a core (12) comprising a plurality of micro-tubes (13A, 13B), the plurality of micro-tubes (13A, 13B) being stacked in horizontal rows (15) between at least two headers (18) by inserting ends of each of the micro-tubes (13A,13B) into slots (42A, 42B) provided in the headers (18); a partition plate (30) disposed vertically in each of header (18) to define two vertical chambers (18A, 18B); wherein each of the horizontal rows (15) include at least one first micro-tube (13A) inserted in the first chamber (18A) and at least second micro-tube (13B) inserted in the second chamber (18B) to enable flow of the coolant in the core assembly (10).

A clamshell heat exchanger for use in a combustion furnace of an HVAC system is presented that includes in one instance two passageways coupled by a turnaround passageway. The first passageway that receives the combustion products diverges. A cross section of the first passageway resembles a tear drop or air foil with the widest portion closest to the second passageway. The second passageway also diverges from the turnaround portion towards the outlet. The second passageway may include a baffle that forms two flow streams. Other embodiments are presented.

A liquid-cooling heat dissipation structure includes a substrate and a cover body mated with the substrate to define a heat exchange chamber therebetween. A radiating fin unit and a stop section are disposed in the heat exchange chamber. The stop section serves to first divide a cooling liquid entering the heat exchange chamber, whereby the cooling liquid first flows through the periphery of the radiating fin unit and then flow into the middle of the radiating fin unit so that the cooling liquid is prevented from straightly passing through the radiating fin unit. Multiple cooperative flow-stopping protrusions are disposed in the periphery of the radiating fin unit to help the cooling liquid to uniformly flow through the radiating fin unit. By means of the structural design of the liquid-cooling heat dissipation structure, the heat exchange efficiency is greatly enhanced.

The present invention relates to a heat exchanger (2) having a jacket (10) through which a first medium (A) can flow and which has at least one first inlet (11) and at least one first outlet (12), at least one tube (30) through which a second medium (B) can flow, the tube (30) being guided through the jacket (10) and having at least one second inlet (31) and at least one second outlet (32), wherein a deflection segment (50) or a plurality of deflection segments (50) are arranged in a row in a longitudinal axis (X) in the jacket (10), wherein the deflection segment (50) is formed from at least two partial sections (51, 52), which are arranged so as to overlap and cross, in areas, transverse to the longitudinal axis (X).

A method includes providing a first metal sheet and a second metal sheet, printing patterns of a plurality of obstructers, a plurality of channels, an evaporator channel, a condenser channel, and a connecting channel on the first metal sheet, bonding the first metal sheet and the second metal sheet to each other, separating the first metal sheet and the second metal sheet from each other to form the plurality of channels, the evaporator channel, the condenser channel, and the connecting channel by introducing a fluid between the first metal sheet and the second metal sheet, introducing working fluid in the plurality of channels, and sealing the first metal sheet and the second metal sheet.

A cooling device for external cooling of a film tube subjected to internal pressure in the production of blown films of thermoplastic material includes a cooling gas ring with a ring housing and a ring nozzle arranged concentrically to a central axis and being open towards the film tube. At least one inner ring channel extending in the circumferential direction about the central axis and being open radially inwards towards the ring nozzle is included. At least one feed channel for supplying cooling gas is attached to the ring housing and connected to the ring channel. The cooling device also includes at least one flow guiding device arranged in the at least one feed channel. When a cooling gas flows through the flow guiding device, at least a partial flow of the cooling gas is set in rotation about a flow axis prior to flowing into the ring channel.

A heat-exchange device (2) for a laundry treatment machine includes a first heat exchanger (4) and a second heat exchanger (6) that are disposed successively along a flow path (10) of process air in an operating state of the heat-exchange device (2), and are connected to each other by a connecting plate (8). The first heat exchanger (4) includes a first side plate (12), and the second heat exchanger (6) includes a second side plate (14), wherein the first and the second side plates (12, 14) are each disposed on a side of the heat-exchange device (2) opposite the connecting plate (8) and are disconnected at least in a pre-installation state of the heat-exchange device (2). A base module is configured to fix the relative position of the first and second heat exchangers (4, 6) with respect to each other.

There is disclosed a heat exchanger comprising at least one set of channels having a proximal end and a distal end, the set of channels comprising: a first channel defined by a first skin and a wall; and a second channel defined by a second skin and the wall, wherein the wall located between the first channel and the second channel comprises a first at least one aperture to allow fluid to pass through the wall from the first channel to the second channel.

A heat exchanger includes a first end opposite a second end, a first side opposite a second side, a first layer, and a second layer. The first side and the second side extend from the first end to the second end. The first layer includes an inlet at the first end and an outlet at the second end of the heat exchanger. The second layer includes a first passage at the first end of the heat exchanger and extending from the first side to the second side and a second passage adjacent to the first passage. The second passage extends from the first side to the second side. The second layer further includes a third passage extending from the second end toward the second passage. The first passage is fluidically connected to the third passage proximate the second end and the third passage is fluidically connected to the second passage.

A coolant heating apparatus for an electric vehicle includes a sheath heater formed in a coil form at a center side of the coolant heating apparatus; one or more inner tubes, one of which has an inlet formed at one side thereof for introduction of coolant, the one or more inner tubes being arranged to surround the sheath heater or to be surrounded by the sheath heater, and the one or more inner tubes having a plurality of through-holes formed on respective outer peripheral surfaces thereof so that the coolant introduced into the inlet is discharged through the through-holes; and an outer tube surrounding the sheath heater and the one or more inner tubes and having an outlet formed at one side thereof so that the coolant heated by the sheath heater is introduced through the through-holes of the one or more inner tubes and is discharged through the outlet.